Found 40 results for the keyword ‘Air Barriers’

  • WHAT SEALING MATERIAL SHOULD I USE?

    There is a wide and confusing choice, and no one material will do for every job. The questions to ask are: What will it stick to? Can I paint it? How long will it last? You won't be saving money if you have to replace the material often; some caulking materials will harden and crack after on...
  • "Sealants", caulking and other confusing vocabulary

    Sealants, caulking and other confusing vocabularyThere are all kinds of "sealants" used in construction.What we normally call a "caulking" is properly called a sealant -- a thick material that cures to a flexible solid designed to "seal" the space between two materials -- particularly two materia...
  • WHAT ARE THE RULES FOR APPLYING INSULATION IN THE ATTIC?

    -- Take care of air barriers, ventilation and vapour barriers before insulating. Check out these three topics in the Search Tab above.-- Don't block the eave vents with insulation.-- Do cover the top of the outside wall.-- Don't put plastic foam on top of porous insulations (batts, loose fill) a...
  • HOW DO I FIND AIR LEAKS?

    First, the fancy way: infrared photography can identify temperature changes on different parts of the house, and thus heat losses. With proper interpretation of the photograph you can know which heat losses are caused by air leaks and which by missing or soaked insulation. This is like an X-ra...
  • Solving Ice Dam problems.

    Ice Dams are a serious problem throughout Canada, although it varies from year to year as to which region gets hit. Here we visited one of the solution companies who work to seal up the primary cause of ice dams, the warm air leaks into the attic. For more background on the problem check out th...
  • Air tight electrical boxes

    Vapour Barriers should go on the "Warm in Winter" side of the insulation so that they can stop all the moisture in the air from going through the wall, but stop it where it is still warm and there will be no condensation. The problem is that a lot of air, and a lot of moisture can go through ele...
  • Should you caulk window trim?

    Rob wrote in saying that he had an Energy Audit done on his house and as part of the energy tune-up, they caulked his window trim down to the wall. Yet he thinks this was a wasted effort because he put the trim on himself and it was just decorative.In most window installations, the trim actually...
  • Wind protecting houses in Newfoundland.

    Newfoundland is known for its brutal winds, all year round. So I thought there would be no better place in Canada to take a look at what to you do to a house to avoid wind damage, and keep that wind out of the house. I called on my old buddy Gary Reardon, a prominent new home builder in St. Jo...
  • Moisture problems with a new roof over an old roof.

    Dan from Winnipeg, Manitoba writes: "We have an older manufactured home with a basement. Years ago a new roof was put on top of the existing one. It is post & beam with trusses, sheeted in with shiplap and a metal roof put on. The problem is the original metal roof now seems to sweat in th...
  • What is temporary caulking?

    Temporary caulking is a transparent caulking specifically designed to be put on a window frame in the Fall and then peeled off in the Spring. It is used to actually caulk old windows, usually sliders, shut for the winter because their weather-stripping just isn't keeping the cold out. Remem...